Advertising of commercial or residential real estate; On-line auctioneering services via the Internet; Organization of Internet auctions; Promoting commercial real estate and services of others by means of distributing advertising on the Internet; Providing a searchable on-line advertising website and guide featuring the commercial real estate, office space, industrial space, warehouse space, retail space, healthcare space, medical space, hotels, rentals, for sale advertisements, for lease advertisements and services of other vendors via the Internet; Providing a website for connecting landlords, sellers, brokers and agents with tenants and buyers; Providing advertising service to distribute advertisements for display on Internet, namely, in websites, social conversations over the Internet, emails, microblogs, blogs, electronic messages, instant messages, text messages, multimedia messages, social networks, status updates, forums, electronic bulletin boards; Providing an on-line commercial real estate information directory on the Internet; The bringing together, for the benefit of others, of a variety of commercial real estate properties and services, enabling renters, tenants and buyers to conveniently view, rent, lease and purchase commercial real estate properties and services from an Internet web site particularly specializing in the marketing of the lease and sale of commercial real estate properties and services of others; providing an online marketplace for buyers, tenants, landlords and sellers of commercial real estate and/or services on a global computer network